Guidelines for reporting non-randomised studies.


Reeves, BC; Gaus, W; (2004) Guidelines for reporting non-randomised studies. Forschende Komplementarmedizin und klassische Naturheilkunde = Research in complementary and natural classical medicine, 11 Suppl 1. pp. 46-52. ISSN 1424-7364 DOI: https://doi.org/10.1159/000080576

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Abstract

Non-randomised studies (NRSs) are useful because they allow interventions to be evaluated that are difficult to investigate by randomised controlled trials (RCTs). However, NRSs are more susceptible to bias. The Consolidated Standards of Reporting Trials (CONSORT) statement was established to ensure that researchers report features of RCTs that must be considered when appraising their quality. CONSORT has improved the reporting of key information, highlighting missing key information for users. Researchers have a responsibility to report essential information that allows users to assess the susceptibility of NRS to selection, performance, detection and attrition bias. This paper considers criteria for reporting cohort studies: the rationale behind the CONSORT criteria for reporting of RCTs will be applied to cohort studies. Many of the criteria need no modification but application of others raise difficult issues for cohort studies, e.g.: description and standardisation of control and intervention treatments; description of the method of allocation; choice of prognostic factors to be collected; distinguishing between intended and provided treatments; collection of data on adverse and longterm outcomes; establishing a priori plans for analysis. Copyright 2004 S. Karger GmbH, Freiburg

Item Type: Article
Faculty and Department: Faculty of Public Health and Policy > Dept of Health Services Research and Policy
PubMed ID: 15353903
Web of Science ID: 223655200010
URI: http://researchonline.lshtm.ac.uk/id/eprint/14417

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